curl和fileget_contents在ajax调用后不起作用

curl and file_get_contents not work after ajax call

本文关键字:ajax 调用 不起作用 contents fileget curl      更新时间:2023-09-26

我正在尝试使用坐标检索用户的城市信息。有一个javascript函数,它获取纬度/经度,并使用ajax将其发送到php文件:

Javascript函数

if (navigator.geolocation) { //Checks if browser supports geolocation
        var Clatitude = "no";
        var Clongitude;
        navigator.geolocation.getCurrentPosition(function(position) {
                Clatitude = position.coords.latitude;
                Clongitude = position.coords.longitude;
                $.ajax({
                    type: "POST",
                    url: "../wp-content/themes/Avada-child/test_BLZ.php",
                    data: {'latitudine': Clatitude,'longitudine': Clongitude},
                    success: function(data) {
                    console.log(data);
                    },
                    dataType: "JSON"
                });
            },
            function(error) {
                 alert(error.message);
                 }, {
                enableHighAccuracy: true,
                timeout: 5000
            });
    }

用PHP编写的服务器端脚本

<?php
$latitudine = $_POST['latitudine'];
$longitudine = $_POST['longitudine'];
$geolocation = $latitudine.','.$longitudine;
$request = 'http://maps.googleapis.com/maps/api/geocode/json?latlng='.$geolocation.'&sensor=false'; 
$file_contents = url_get_contents($request);
echo ($file_contents);
function url_get_contents ($Url) {
    if (!function_exists('curl_init')){ 
        die('CURL is not installed!');
    }
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $Url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $output = curl_exec($ch);
    curl_close($ch);
    return $output;
}
?>

问题是响应没有显示在我的控制台中。我试图用file_get_contents对响应进行分页,但仍然无法检索到响应

除此之外,其余代码运行良好。事实上,只要我从php文件中删除curl'sfile_get_contents,其余的代码就会顺利运行。我甚至在ajax成功函数中检索到了一个(假)响应。

有人能帮忙吗?谢谢;)

---编辑我的curl执行时间很长,我在另一台服务器上运行相同的代码,这就是区别:

卷曲执行时间长的服务器

{
   "url": "http://maps.googleapis.com/maps/api/geocode/json?latlng=45.644843,8.9986268&sensor=false",
   "content_type": "application/json; charset=UTF-8",
   "http_code": 200,
   "header_size": 377,
   "request_size": 119,
   "filetime": -1,
   "ssl_verify_result": 0,
   "redirect_count": 0,
   "total_time": 127.26954,
   "namelookup_time": 0.001964,
   "connect_time": 127.23926,
   "pretransfer_time": 127.239265,
   "size_upload": 0,
   "size_download": 11729,
   "speed_download": 92,
   "speed_upload": 0,
   "download_content_length": -1,
   "upload_content_length": 0,
   "starttransfer_time": 127.269424,
   "redirect_time": 0,
   "certinfo": []
   "request_header":"GET '/maps'/api'/geocode'/json?latlng=45.644843,8.9986268&sensor=false HTTP'/1.1'r'nHost: maps.googleapis.com'r'nAccept: *'/*'r'n'r'n"
}

卷曲执行时间短的服务器

{
   "url": "http://maps.googleapis.com/maps/api/geocode/json?latlng=45.644843,8.9986268&sensor=false",
   "content_type": "application/json; charset=UTF-8",
   "http_code": 200,
   "header_size": 377,
   "request_size": 119,
   "filetime": -1,
   "ssl_verify_result": 0,
   "redirect_count": 0,
   "total_time": 0.116182,
   "namelookup_time": 0.012194,
   "connect_time": 0.027452,
   "pretransfer_time": 0.027473,
   "size_upload": 0,
   "size_download": 11729,
   "speed_download": 100953,
   "speed_upload": 0,
   "download_content_length": -1,
   "upload_content_length": 0,
   "starttransfer_time": 0.114101,
   "redirect_time": 0,
   "redirect_url": "",
   "primary_ip": "172.217.**.**",
   "certinfo": [],
   "primary_port": 80,
   "local_ip": "192.168.**.**",
   "local_port": 51393
   "request_header":"GET '/maps'/api'/geocode'/json?latlng=45.644843,8.9986268&sensor=false HTTP'/1.1'r'nHost: maps.googleapis.com'r'nAccept: *'/*'r'n'r'n"
}

我的服务器出了什么问题?我注意到在第一种情况下没有ip引用!

由于来自服务器的响应不是JSON的形式,因此不应该从AJAX调用中设置dataType:"JSON"

请从AJAX电话中对此进行评论。

$.ajax({
   type: "POST",
   url: "../wp-content/themes/Avada-child/test_BLZ.php",
   data: {'latitudine': Clatitude,'longitudine': Clongitude},
   success: function(data) {
       console.log(data);
   },
   //dataType: "JSON"     <-- COMMENT this out
});



另一个选项是,您应该从服务器发送JSON编码的响应。

$file_contents = url_get_contents($request);
echo (json_encode($file_contents));